NH3/CO2 Cascade Refrigeration System: The Pinnacle of Efficient Cooling
1. NH3/CO2 - The Ingenious Principle of Cascade Refrigeration System
The NH3/CO2 cascade refrigeration system is masterfully designed, comprising two distinct segments: the high-temperature stage and the low-temperature stage. The high-temperature stage utilizes NH3 as the refrigerant, while the low-temperature stage employs CO2. Ingeniously, the evaporation process of NH3 in the high-temperature system is harnessed to condense the CO2 gas emanating from the low-temperature system. A state-of-the-art condensation evaporator connects these two stages, acting as both a condenser for the low-temperature level and an evaporator for the high-temperature level, ensuring optimal thermal efficiency.
The heat load is seamlessly transferred to the CO2 refrigerant via the end evaporator. This absorbed heat is then impeccably conveyed to the high-temperature NH3 refrigerant through the sophisticated condensing evaporator. The NH3 refrigerant subsequently transfers this heat to the high-temperature condenser, releasing it into the environment using a cooling medium. The CO2, now condensed in the condensing evaporator, makes its way to the CO2 reservoir, subsequently passing through the dryer filter and throttle valve into the CO2 gas-liquid separator. Liquid CO2 efficiently circulates to the CO2 evaporator through the CO2 circulation pump (excluding terminal cooling devices like single freezers or chillers). Post-evaporation, the two-phase CO2 reverts to the gas-liquid separator, where gaseous CO2 is adeptly compressed into the condensing evaporator by the compressor, perpetuating the entire cycle of the cascade refrigeration process.
In the NH3/CO2 cascade refrigeration system, each temperature level operates as a distinct refrigeration system utilizing a single refrigerant. The high-temperature NH3 system mirrors conventional refrigeration setups, featuring not only a refrigeration compressor but also a condenser, liquid storage, gas-liquid separator, and throttling device. Meanwhile, the low-temperature CO2 refrigeration system includes a CO2 compressor, condensing evaporator, reservoir, gas-liquid separator, filter dryer, pump, throttling device, evaporator, and expansion vessel, each working in perfect harmony to deliver exceptional cooling performance.
The The CO2 gas-liquid separator is ingeniously used to filter out droplets of CO2 gas from the evaporator in the CO2 compression refrigeration system. This avoids the compressor's wet stroke, maintains a stable liquid level during the pump's operation, and accommodates the end equipment and pipeline liquid return when the pump ceases operation. When not active, the separator also functions as a CO2 reservoir, its volume designed to contain all system CO2 liquid. Additionally, an auxiliary evaporator is strategically placed atop the separator to prevent excessive CO2 pressure upon shutdown. Within the NH3/CO2 cascade system, the condensing evaporator serves as both the NH3 side evaporator and the CO2 side condenser, where compound liquid skilfully evaporates and absorbs heat, allowing carbon dioxide gas to condense into liquid form.
2. Compelling Advantages of the NH3/CO2 Cascade Refrigeration System
(1) Enhanced NH3 Safety Protocols:
(1.(1)) The NH3/CO2 cascade refrigeration system significantly diminishes the NH3 refrigeration medium's condensing pressure, reducing it to a mere 1/10th of the charge required in traditional ammonia refrigeration systems, ensuring enhanced safety.
(1.(2)) NH3 is confined to the machine and equipment rooms, akin to securely containing a 'tiger' within a 'cage,' under the vigilant supervision of skilled professionals.
(1.(3)) NH3's excellent heat transfer capabilities are fully utilized in the high-temperature region to effectively cool CO2.
(2) The use of CO2 as a medium in personnel-rich operational areas such as single freezing machines and warehouses ensures the utmost safety for both personnel and property, offering peace of mind.
cb4db50d
| Compressor type |
Piston, screw |
| Condensor |
enough condenser heat exchanger surface |
| Fan type |
Axial fan:High degree of protection, large Air flow, low noise |
| Unit kinds |
Open type, box type, side discharge type |
| Cooled type |
Air cooled |
| Refrigeration type |
R717;R507;R22;CO2 |
| Copper tube connector |
fitting reducer |
| Place to assemble |
Indoor/out door(concrete construction building/steel
construction building). |
| Voltage |
220V/50HZ, 220V/60HZ, 380V/50HZ etc |
| Controller |
Automatic electric controller, PLC |
| Warranty |
1 Year |
| Case material |
The galvanized sheet is coated with plastic powdered painted |
| Quality Assurance |
2.6Mpa leak-proof stress test |
| Package |
Plywood box and pallet |
As a premier manufacturer, we take pride in offering customized solutions tailored precisely to your unique needs. If you're uncertain about which model is best suited for your requirements, feel free to reach out to us, and we'll be delighted to assist you.Our team of experienced and highly skilled engineers is at your service, ready to craft a bespoke solution that perfectly aligns with your specific demands.
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This impressive project spans a vast area of 60,542 square meters, with an expansive total construction area of 72,370.31 square meters. Within this space, it features a state-of-the-art production workshop and a dedicated cold storage area totaling 65,538.50 square meters.
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Qingdao Bingyan Refrigeration Equipment Co., Ltd. Founded in 2011, nestled in the picturesque coastal city of Qingdao, Qingdao Bingyan Refrigeration Equipment Co., Ltd. is a cutting-edge enterprise that seamlessly blends industrial and commercial freezing, sophisticated cold storage solutions, and advanced refrigeration systems. We pride ourselves on our comprehensive approach, encompassing research, design, manufacturing, and sales, establishing us as a leader in the high-tech sector.
Since our establishment, we have steadfastly adhered to the guiding principles of 'science and technology,' with 'management' as our assurance. Our unwavering mission is to respond to market demands, deliver unparalleled customer service, and provide impeccable refrigeration system solutions, products, and services to our valued clients.
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At BINGYAN, our unwavering commitment is to deliver scientific and well-thought-out refrigeration system solutions, coupled with top-tier engineering and exceptional after-sales services.
Bingyan offers an all-encompassing suite of services, ranging from sales and design to meticulous construction and dedicated after-sales service.
1. Our sales department shines in its ability to thoroughly understand and precisely capture customer needs, ensuring seamless communication and a perfect alignment with customer intentions.
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A: Through our professional designers according to your needs for your professional design, and select the appropriate refrigeration equipment. Ultimately, we achieve the purpose of high cooling efficiency, energy saving and power saving.
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A:Our company was established in 2011 and has a professional cold storage design team, installation team, and experienced after-sales maintenance personnel. We can provide a complete set of cold storage design, installation guidance, and after-sales maintenance services.
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A: Within 60 days after we confirm you requirement.
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